DE202016001856U1 - Electric device - Google Patents

Abstract

An electrical device (10; 90; 95) having a male terminal (34; 34A; 34B; 34C) and configured to allow a battery pack (50) having a female terminal (70) to be attached thereto, wherein the male terminal (34; 34A; 34B; 34C) is configured to be electrically connected to the female terminal (70) by sliding the battery pack (50) relative to the electrical device (10; 90; 95) such that the male terminal (34; 34A; 34B; 34C) is inserted into the female terminal (70) in a sliding direction so as to come into elastic contact with the female terminal (70), the male terminal (34; 34B; 34C) is configured to have a plate shape, and the male terminal (34; 34A; 34B; 34C) extends in the sliding direction and includes a side surface (37) to which the female terminal (70) is in sliding contact a height difference part (41; 41A; 42B; 41C; 41D) in a thickness direction of the male terminal (34; 34A; 34B; 34C) is provided on the side surface (37) of the male terminal (34; 34A; 34B; 34C), and the height difference portion (41; 41A; 42B; 41C; 41D) is configured to include a portion (38). in which the female terminal (70) comes into sliding contact with the male terminal (34; 34A; 34B; 34C).

Description

BACKGROUND

Technical area

The present teachings generally relate to an electrical device that includes a male terminal (male terminal, terminal to be inserted) for electrically connecting to a female terminal (female terminal) of another electrical device by slidably sliding with respect to the female terminal ,

State of the art

In electric power tools of recent years, a battery pack for an electric power tool, which is also referred to only as a battery pack (battery pack), is used as a power source for the electric power tool. When a charge level becomes low, the battery pack is removed from a tool main body by sliding (shifting) the battery pack and then charged by an associated charger. After the charging is completed by the associated charger, the battery pack is again attached to the tool main body by sliding the battery pack with respect to the tool main body. Optionally, such battery packs may be used by means of an associated adapter when used as a power source for the electric power tool. Hereinafter, the tool main body, the associated charger and the adapter to which the battery pack is attached are collectively referred to as "electrical equipment".

An electrical connection of the battery pack (battery pack) with respect to the electrical device may be made by inserting a male terminal (male terminal, terminal to be inserted) provided on the electrical device into a female terminal (female terminal) provided on the battery pack , getting produced. Specifically, for example, the female terminal provided on the battery pack may be configured so that metallic terminals of the female terminal are arranged to face each other, and the male terminal is inserted between the metallic terminals of the female terminal, so that the female terminal and the male terminal are electrically connected. Moreover, the male terminal provided on the electric device is configured to have a plate shape that can be clamped and / or held between the female terminal described above. The male terminal having the plate shape extends in a sliding direction to allow insertion of the male terminal into the female terminal. The metallic terminals of the female terminal, which are arranged so as to face each other, come into contact with the male terminal by clamping the male terminal by an elastic force. A power supply state, ie, an electrical connection state, between the male terminal and the female terminal can be achieved by this contact. The Japanese Laid-Open Patent Publication No. 2013-42672 and the Japanese Laid-Open Patent Publication No. 2013-230553 reveal the configurations described above.

With respect to the above-described female and male terminals, here are cases where oxidation films can be formed by the power supply on the surfaces of the female terminal and the male terminal. Such oxidation films may cause an interruption of the power supply between the female terminal and the male terminal. Therefore, the removal of the thus formed oxidation films may be desirable as much as possible. However, if such removal of the oxidation films has to be performed by a single user, an excessive burden on the user for handling (maintaining) the tool may be increased, and complicated work may be involved here, which may be troublesome for the user.

Therefore, there is a need in the art to provide an electric device (electric power tools, electric machines, chargers and adapters) having a male terminal for electrically connecting to a female terminal by sliding (sliding) with respect to the female terminal, in which oxidation films formed on the surfaces of the female terminal can be removed without an increase in the expense for the user to service the electrical device.

This object is achieved by providing an electrical device according to claim 1 or claim 17.

SUMMARY

Generally speaking, the present disclosure relates to an electrical device having a male terminal, and the electrical device may be configured to attach a battery pack having a female terminal. In addition, the male port can be configured to electrically connected to the female terminal by sliding the battery pack relatively with respect to the electric appliance, so that the male terminal is inserted into the female terminal in a sliding direction to come into elastic contact with the female terminal. Moreover, the male terminal may be configured to have a plate shape, and may extend in the sliding direction, and may include a side surface to which the female terminal comes into sliding contact. Moreover, a height difference portion may be provided in a thickness direction of the male terminal on the side surface of the male terminal, and the height difference portion may be configured to include a portion in which the female terminal comes into sliding contact with the male terminal.

According to this embodiment, the height difference portion on the lateral surface of the male terminal in the thickness direction of the disc, i. H. the male connection, be trained. The height difference portion may include a portion with which the female terminal comes into sliding contact during the sliding movement. Therefore, the oxidation films formed on the surfaces of the terminals can be removed and / or scraped by a concavo-convex shape of the height difference portion. By virtue of this configuration, the oxidation films formed on the surfaces of the male terminal can be removed without increasing an excessive expense for a user to handle (maintain) the electric apparatus. Accordingly, the electrical connection between the female terminal and the male terminal can be advantageously and / or desirably maintained.

In an exemplary embodiment, the height difference portion may be provided on both side surfaces of the male terminal. With this configuration, the oxidation films formed on both side surfaces of the male terminal as described above can be removed and / or scraped off. Accordingly, the electrical connection between both lateral surfaces of the male terminal can be advantageously and / or desirably maintained.

In another exemplary embodiment, the electrical device may include a signal terminal configured to transmit and receive a signal to and from the battery pack, and the signal terminal may be a male terminal, and the height difference portion may include at least one of the male terminals Be formed exception of the signal terminal. The height difference portion may be attachment and / or removal resistance when the battery pack for the electric power tool for attaching and / or removing the battery pack is slid to and / or slid from the electrical equipment. Moreover, with respect to the signal terminal, a low signal voltage can be applied to the signal terminal. For example, a signal voltage not higher than 5 V may be applied to the signal terminal. Specifically, a signal voltage of 3.3V can be applied to the signal terminal for transmitting a signal. Therefore, the above-described oxidation films are less likely to be formed on the surfaces of the signal terminal. With this configuration, an unnecessary height difference portion effecting the attachment and / or removal resistance can be dispensed with, while the oxidation films are preferably removed and / or scraped at desired positions. Accordingly, the battery pack for the electric power tool can be easily and desirably attached and / or removed to and from the electrical device.

In another exemplary embodiment, the lateral surface of the male terminal may include a planar connecting portion with which the female terminal comes into electrical contact when sliding movement of the battery pack with respect to the electrical device is completed. For example, a state in which the sliding movement is completed may be a state in which a relationship between the battery pack for the electric power tool and the electric device is fixed by an engagement structure that exists between the battery pack for the electric power tool and the electric device is provided ". By virtue of this construction, after completion of the sliding movement, the female terminal can come into contact with the male terminal at the male joint flat joint portion and not at the height difference portion. Accordingly, the contact of the female terminal with respect to the male terminal can not be hindered by the height difference portions, so that the electrical contact between the female terminal and the male terminal can be advantageously and / or desirably maintained.

In another exemplary embodiment, the height difference portion may be configured such that the lateral surface of the male terminal is concave from the planar connection portion in a thickness direction of the male terminal. Moreover, in another exemplary embodiment of the disclosure, the height difference portion may be configured to have a through-hole through the level Connecting part penetrates. In this configuration, since the height difference part is concave in the thickness direction with respect to the planar connection part or a through hole is formed in a thickness direction of the male terminal, the oxidation film formed on the surface of the terminal can be removed by the height difference part / or be scraped off.

In another exemplary embodiment, the height difference portion may be configured such that the lateral surface of the male terminal protrudes from the planar connection portion in a thickness direction of the male terminal. In this configuration, since the height difference part is formed in the thickness direction with respect to the planar connection part, the oxidation film formed on the surface of the terminal can be removed and / or scraped by the height difference part.

In another exemplary embodiment, the height difference portion may have a linear shape extending in a direction crossing the sliding direction. With this configuration, since the height difference part has the linear shape extending in a direction crossing the sliding direction, the oxidation film formed on the surface of the terminal can be removed and / or scraped off due to the sliding movement.

In another exemplary embodiment, the height difference part may also cross a direction that is perpendicular to the sliding direction. Due to this construction, since the height difference part also crosses the direction perpendicular to the sliding direction, the removed and / or scraped oxidation film remaining in the convex parts can be moved in the direction crossing the sliding direction in the sliding movement. Accordingly, the oxidation films which are removed and / or scraped off from the height difference portion of the male terminal can be discharged from the surface of the male terminal.

In another exemplary embodiment, it may be configured such that a plurality of the planar connecting portions of the male terminal are spaced in the sliding direction corresponding to a plurality of contact points of the female terminal spaced in the sliding direction.

Due to this construction, the electrical contact points between the female terminal and the male terminal can be reliably and / or desirably obtained, and thus a mutual electrical connection between the female terminal and the male terminal can be reliably and / or satisfactorily achieved. The flat connection parts corresponding to the contact points of the female terminals may be provided so that here are two areas containing the above-described concave parts or that the concave parts are provided along the entire sliding surface.

In another exemplary embodiment, a first male terminal and a second male terminal may be provided. Moreover, it may be configured such that a height difference part of the first male terminal is brought into sliding contact with a contact point of a first female terminal at the same time when a height difference part of the second male terminal is brought into sliding contact with a contact point of the second female terminal. Further, the first male terminal may be configured to correspond to a positive terminal of a power source, and the second male terminal may be configured to correspond to a negative terminal of the power source. Due to this construction, the sliding resistance of the battery pack for an electric power tool when the contact point of the female terminal climbs over the height difference part can be achieved in a balanced manner by the arrangement of the negative and positive terminals. Accordingly, a Gleitpositur and / or sliding direction of the battery pack for the electric power tool can be maintained in a simple manner and / or desirable, and thus the operability during the sliding movement can be improved.

In another exemplary embodiment, the electrical device may be an electric power tool. Due to this construction, the oxidation films formed on the surfaces of the terminal can be removed from the electric power tool without increasing the user's expense of servicing the electric power tool, so that an electrical connection between the female terminal and the male terminal can be maintained desirably and / or satisfactorily over a long period of time.

In another exemplary embodiment of the disclosure, the electrical device may be an electrical machine. Due to this construction, the oxidation films formed on the surfaces of the terminal can be removed from the electric working machine without increasing the user's expense of servicing the electric machine, so that an electrical connection between the female terminal and the male terminal is desirable and / or can be maintained satisfactorily over a long period of time.

In another exemplary embodiment of the disclosure, the electrical device may be a charger. By virtue of this construction, the oxidation films formed on the surfaces of the terminal can be removed from the charger without increasing the burden on the user to maintain the charger, so that an electrical connection between the female terminal and the male terminal is desirable and / or. or maintained satisfactorily over a long period of time.

In another exemplary embodiment of the disclosure, the electrical device may be an adapter connected between the battery pack and another device. Due to this construction, the oxidation films formed on the surfaces of the terminal can be removed from the adapter without increasing the user's expense of waiting for the adapter, so that an electrical connection between the female terminal and the male terminal is desirable and / or. or maintained satisfactorily over a long period of time.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a perspective view of a impact wrench, from which a battery pack is removed.

2 is a perspective view of the impact wrench, to which the battery pack is attached.

3 FIG. 15 is a perspective view showing an internal structure of a tool main body and the battery pack incorporated in FIG 1 are shown represents.

4 FIG. 15 is a perspective view showing an internal structure of the tool main body and the battery pack incorporated in FIG 2 are shown represents.

5 is a side view showing an inner structure that is in 3 is shown represents.

6 is a side view showing an inner structure that is in 4 is shown represents.

7 is an enlarged side view showing an insertion part in 6 represented to an enlarged extent.

8th FIG. 16 is a perspective view showing a male terminal and the battery pack. FIG.

9 FIG. 10 is a plan view illustrating an initial state of slide insertion of a male terminal into a female terminal. FIG.

10 FIG. 10 is a plan view illustrating a middle state of sliding insertion of the male terminal into the female terminal. FIG.

11 FIG. 10 is a plan view illustrating a completion state of sliding insertion of the male terminal into the female terminal. FIG.

12 is an enlarged plan view illustrating the male terminal.

13 is an enlarged side view illustrating the male connector.

14 is an enlarged plan view showing a concavo-convex part, which in 12 is shown, in a further enlarged scale represents.

15 FIG. 10 is an enlarged plan view illustrating a male terminal according to a second embodiment. FIG.

16 FIG. 10 is an enlarged side view illustrating the male terminal according to the second embodiment. FIG.

17 FIG. 10 is an enlarged plan view illustrating a male terminal according to a third embodiment. FIG.

18 FIG. 10 is an enlarged side view illustrating the male terminal according to the third embodiment. FIG.

19 is an enlarged plan view showing a concavo-convex part in 17 represents in a further enlarged measure.

20 FIG. 10 is an enlarged plan view illustrating a male terminal according to a fourth embodiment. FIG.

21 FIG. 10 is an enlarged side view illustrating the male terminal according to the fourth embodiment. FIG.

22 is an enlarged cross-sectional view taken along a line XXII-XXII in 21 on an enlarged scale.

23 FIG. 15 is an enlarged cross-sectional view showing a modified example of the fourth embodiment in FIG 22 represents.

24 is a perspective view illustrating a charger.

25 is a perspective view illustrating a battery adapter.

DETAILED DESCRIPTION

The detailed description given below is intended, with reference to the attached drawings, to provide a description of exemplary embodiments of the present teachings and is not intended to be limiting and / or representative of the sole embodiments in which the present teachings may be practiced , The term "exemplary" as used throughout this specification means "serving as an example or illustration" and should not necessarily be construed as preferred or advantageous over other exemplary embodiments. The detailed description includes specific details for enabling a basic understanding of the exemplary embodiments of the teachings. It will be apparent to those skilled in the art that the exemplary embodiments of the teachings may be practiced without these specific details. In some instances, known structures, components and / or devices are shown in block diagram form to avoid obscuring significant aspects of the exemplary embodiments presented herein.

First embodiment

Referring now to 1 to 14 An embodiment of an electrical appliance will now be described. 1 is a perspective view of a striking screwdriver 10 from which a battery pack 50 is removed. 2 is a perspective view of the impact wrench 10 on which the battery pack 50 is appropriate. 3 FIG. 12 is a perspective view showing an internal structure of a tool main body. FIG 11 and the battery pack 50 in 1 represents. 4 FIG. 15 is a perspective view showing an internal structure of the tool main body. FIG 11 and the battery pack 50 , in the 2 are shown represents. 5 is a side view showing the inner structure that is in 3 is shown represents. In addition, it is 6 a side view showing the inner structure in 4 is shown represents. A first embodiment of the electrical device will be described below, in which the battery pack 50 on the impact wrench 10 is appropriate.

The impact wrench 10 corresponds to the electric power tool of the present embodiment. The impact wrench 10 Can be powered when the battery pack 50 on the tool main body 11 is attached as a power source. The tool main body 10 may correspond to the electrical device to which the battery pack for the electric power tool of the present embodiment is attached. In addition, the battery pack can 50 correspond to the battery pack for the electric power tool according to the present embodiment. The battery pack 50 can be detachable on the tool main body 11 as the power source of the impact wrench 10 to be appropriate. When a charge level becomes low, the battery pack can 50 from the tool main body 11 be removed and charged by an associated charger. The battery pack 50 that has been charged by the associated charger can be returned to the tool main body 11 as the power source of the electric power tool such as the impact wrench 10 to be attached.

As in 1 and 2 shown, the tool main body 11 generally a drive unit 13 , a handle part 14 and a battery attachment part 20 contain. An outer jacket of the drive unit 13 and the handle part 14 can through an integrated housing 121 be educated. Various components that make up the tool main body 11 can form in the housing 121 be included. A brushless DC motor 131 configured to rotatably drive a motor shaft (not shown) may be in the housing 121 that the drive unit 13 contains, be included. The brushless DC motor 131 may be a drive source of the tool main body 11 be configured to rotate the motor shaft (not shown). A rotational driving force may be transmitted from the rotationally driven motor shaft to a gear mechanism (not shown).

The gear mechanism that receives the rotational drive force from the motor shaft may rotate to an output unit 133 provide. The output unit 133 may suitably be provided with, for example, a bit (not shown) attached thereto. Because of this, a mounting chuck (chuck) 135 for attaching the bit to the output unit 133 be provided. In addition, a cooling fan 137 on the motor shaft of the brushless DC motor 131 to be appropriate. Outside air can be used to cool the brushless DC motor 131 be sucked by the Kühllüfterrad, which rotates together with the motor shaft. The housing 121 may have a handle shape and an outer shell of the handle part 14 form. In other words, the handle part 14 be formed in a handle shape, which is adapted to be held by a user's hand. An operating switch 15 can be on an upper side of the handle part 14 be provided.

The operating switch 15 may generally be a switch main body 151 and an actuating handle 153 contain. The switch main body 151 can in the case 121 be included that the handle part 14 and an input signal to a controller (not shown) upon receipt of an input signal from the operation trigger 153 send. The push button 153 can go to the outside of the case 121 and may be configured to perform an indentation operation corresponding to an input made by the user. A shifter 155 can be on an upper side of the push button 153 be provided. The shifter 155 may be a rotation direction of the output unit 133 switch (change). The housing 121 can by screw components 123 be firmly assembled.

The battery attachment part 20 can be attached to a lower part of the case 121 be provided. The battery pack 50 of the slide type, which will be described later, can be detachably attached to the battery attachment part 20 to be appropriate. The battery pack 50 can to the battery attachment part 20 be attached by relative to the battery attachment part 20 sliding from the front to the back. On the other hand, the battery pack 50 from the battery attachment part 20 be removed by relative to the battery attachment part 20 slid from the back to the front.

The battery attachment part 20 and the battery pack 50 can with a rail structure 21 and a female-male connection structure 30 (Insertion / insertion structure), which allows the attachment (connection) in relation to each other by a sliding movement. The rail structure 21 may provide a guide structure for sliding (shifting) the battery pack 50 in relation to the attachment part 20 exhibit. The female-male connection structure 30 can between the battery pack 50 and the tool main body 11 be provided and configured to the battery pack 50 electrically with respect to the battery attachment part 20 to connect by a sliding movement.

Female (female) splints 23 that a rail structure 21 of the female type, as in 3 can be shown on the battery attachment part 20 be provided. In addition, male splints (introductory splints) 25 that a rail structure 21 of the male type, as in 1 shown on the battery pack 50 be provided. In particular, the female rails 23 with a pair of left and right inward projections 24 from peripheral edge portions on both the left and right sides of the lower part of the housing 121 be projected, be provided. The inwardly protruding parts 24 can be in a sliding direction of the battery pack 50 extend. The male tracks 25 can in the female rails 23 be fitted by a sliding movement. Accordingly, a relative sliding movement of the battery pack 50 with respect to the battery attachment part 20 be executed. The battery attachment part 20 can with a female hook part 27 be provided with a male hook part 57 of the battery pack 50 can be engaged. The female hook part 27 can be a stop surface 271 included, with which a stopper part 572 of the male hook part 57 comes into contact when the male hook part 57 with the female hook part 27 engaged.

The battery pack 50 can generally be a case 51 , a male hook mechanism 55 and a battery main body 61 contain. As in 1 shown, the housing can 51 by combining a lower housing 52 and an upper housing 53 be educated. The lower case 52 may be configured to have a box-like shape with an opening at the top for receiving the battery main body 61 having. On the other hand, the upper housing 53 be configured to have a lid shape that the opening at the top of the lower housing 52 can close. The lower case 52 and the upper case 53 can screw together 60 for forming the housing 51 to get integrated. The housing 51 , which is so formed, can the male hook mechanism 55 and the battery main body 61 , as in 3 shown included.

As in 1 shown, the upper case 53 with the male rails 25 be provided. The male tracks 25 can as a pair with a left and a right projecting part 26 provided outwardly from peripheral edge portions at both the left and right sides at an upper part of the upper case 53 protrude. The male tracks 25 that extend in a sliding direction may be configured to fit into the female rails 23 of the above-described battery attachment part 20 to be fitted by a sliding movement. In other words, the male rails 25 of the battery pack 50 in the female rails 23 of the battery attachment part 20 be fitted (inserted) by the sliding movement. In addition, the sliding movement for performing the attachment and / or removal of the battery pack 50 on and / or from the battery attachment part 20 be executed.

As in 1 and 3 shown, the upper case 53 with three opening slots 541 for ground connections 65 , Discharge connections 66 , a charging port 67 and a communication port 68 be provided. The ground connections 65 and the discharge ports 66 can be power source connections, each with a male ground connection 341 and a male discharge port 342 of the tool main body 11 get connected. In other words, the ground connections 65 and the discharge ports 66 in the battery pack 50 electrical power from the battery pack 50 for the tool main body 11 provide. On the other hand, the communication port 68 a signal port connected to a male communication port (male port 49 ) of the tool main body 11 is connected. The communication port 68 of the battery pack 50 can signal between the battery pack 50 and the tool main body 11 send and / or receive. The communication port 68 may be a signal terminal, and therefore the voltage applied to the communication port 68 is set to be as low as a signal level. For comparison, for example, a voltage of 3.3V, which is substantially less than 5V, may be present at the communication port 68 be applied for sending and receiving the signal.

In addition, the upper case 53 with a connector opening 542 for a communications connector 69 of the battery pack 50 be provided. In addition, the upper case may also have a hook opening 545 Configured to fit the male hook part 57 of the battery pack 50 to allow it to protrude upward therethrough, and a lever opening 546 be provided, which is configured to a lever part for pressing down 58 of the battery pack 50 to expose the outside to allow its operation. The communication connector 69 may be connected to a connector connection part of the associated charger, which will be described later.

The male hook mechanism 55 may be a locking mechanism for fixing a relative positional relationship (relative position) between the battery attachment part 20 and the battery pack 50 is configured when the battery pack 50 on the battery attachment part 20 is attached by a sliding movement. As in 5 and 6 shown, the male hook mechanism 55 a male hook component 56 and a biasing spring 59 contain. The male hook component 56 Can be moved up and down while passing through the housing 51 is stored. The male hook part 57 may be at an upper part of the male hook component 56 be provided and the lever part for pressing down 58 may be at a rear part of the male hook component 56 be provided.

The male hook part 57 may have a hook shape which is upwardly from the hook opening 545 of the upper case 53 protrudes. The lever part for pushing down 58 may comprise a depressible lever shape operable to the outside of the lever opening 546 of the upper case 53 is exposed. The biasing spring 59 may be a coil spring used to bias the male hook component 56 is configured to the upper side and the lever part for pressing down 58 can counteract the biasing spring 59 pressed down.

The male hook part 57 can be a beveled part 571 provided on a rear surface and the abutment part 572 provided on a front surface. The beveled part 571 may have a planar shape which is inclined from a rear side to a front side upwards. If the battery pack 50 to the battery attachment part 20 is attached by the sliding movement, the chamfered part 571 in contact with a leading end edge 273 of the battery attachment part 20 come. In addition, if the battery pack 50 in an attachment direction with respect to the battery attachment part 20 slidably sliding, the male hook component can 56 that the beveled part 571 contains, down against the biasing force of the biasing spring 59 be pressed. In other words, a tip 575 of the male hook part 57 pressed down. When the top (crest) 575 of the male hook part 57 over the front end edge 273 of the battery attachment part 20 slides away, the male hook part 57 of the battery pack 50 in the female hook part 27 of the battery attachment part 20 due to the biasing force of the biasing spring 59 be fit. At the same time, the sliding of the battery pack 50 with respect to the battery attachment part 20 completed and the attachment of the battery pack 50 can be completed. In other words, the male hook part 57 and the female hook part 27 have an engagement structure that between the battery Pack 50 and the tool main body 11 is provided, and a state of engagement by the engagement structure may correspond to a state in which the sliding movement between the battery pack 50 and the tool main body 11 is completed.

As in 6 shown, the stopper part 572 of the male hook part 57 in the female hook part 27 fit, the stop surface 271 of the female hook part 27 are opposite. In addition, a direction in which the stopper part 572 the stop surface 271 opposite, correspond to a direction in which the battery pack 50 from the battery attachment part 20 Will get removed. Due to this, a movement of the battery pack 50 in a direction of removal (forward direction) with respect to the battery attachment part 20 by contact of the abutment part 572 with respect to the stop surface 271 be restricted and a relative positional relationship (relative position) between the battery pack 50 and the battery attachment part 20 can be fixed (locked state).

On the other hand, if the male hook component 56 through the lever part for pushing down 58 against the biasing force of the biasing spring 59 pressed down, the male hook part 57 from the female hook part 27 of the battery attachment part 20 be solved. In other words, limiting the movement of the battery pack 50 with respect to the battery attachment part 20 be solved and thus can the battery pack 50 from the battery attachment part 20 be solved by slid it in the direction of removal.

The battery main body 61 can generally have a battery part 62 and a control unit 63 contain. The battery part 62 may include battery cells (not numbered) and a holder (not numbered) for holding these battery cells. Conduit plates (terminal plates), not shown, may be attached to the electrodes of the battery cells. The circuit boards can be connected to a circuit board 64 the control unit 63 be electrically connected. The control unit 63 can the circuit board 64 to execute various control processes. The circuit board 64 may be provided with a microcomputer, not shown. The microcomputer can monitor a state of the battery cells and control the charging and discharging of the battery cells. It may be possible that such a circuit board 64 does not include a microcomputer but includes a similar electrical component for controlling the charging and discharging of the battery cells.

The ground connections 65 , the discharge connections 66 , the charging port 67 , the communication port 68 and the communication connector 69 As described above, on a top surface of the circuit board 64 be mounted. The ground connections 65 can with negative connections of the tool main body 11 or an associated charger 90 be connected. The discharge connections 66 can with positive connections of the tool main body 11 or an associated charger 90 be connected. The charging port 67 can with a charging port of the associated charger 90 be connected. The communication port 68 can with a communication port of the tool main body 11 be connected. The communication connector 69 can with a communication connector of the associated charger 90 be connected. Signals can be sent via the communication port 68 and the communication connector 69 based on a control process of the circuit board 64 be transmitted and / or received.

The ground connections 65 and the discharge ports 66 may correspond to female terminals according to the present embodiment. The ground connections 65 and the discharge ports 66 can be between the male splints described above 25 are located. Both the ground connections 65 as well as the discharge connections 66 may be configured to have a female shape along the sliding direction. Both the ground connections 65 as well as the discharge connections 66 may be symmetrical with respect to a center axis X of the battery pack 50 be positioned along the sliding direction. As will be described later, the ground connections 65 and the discharge ports 66 electrically with male connections 34 attached to the battery attachment part 20 are provided by sliding the battery pack 50 relative to the tool main body 11 get connected.

The ground connections 65 and the discharge ports 66 can by mounting the same female connectors 70 on the circuit board 64 be formed. The female connections 70 can have the female shape and can be electrically connected to the male terminals 34 of the battery attachment part 20 get connected. The female connections 70 may be formed in the female mold so that the plate-shaped male sections 34 which will be described later, in which female terminals can be inserted and / or from both sides of female terminals 70 can be included. In other words, the female connectors 70 be configured to form a pair with a symmetrical structure. Due to this construction, only one pair will be in the following Description described. An enlarged side view in 7 represents an enlarged measure of an insertion part (the male terminal 34 and the female connection 70 ), which is in 6 is shown, dar.

The female connection 70 may be formed such that there are two electrical contact points separated (spaced) in the longitudinal direction (front-rear direction), ie, a front contact point and a rear contact point. As in 7 represented, the female connection can 70 a storage seat 71 , Storage bridges 73 and connecting parts 75 have, which are integrally formed. The storage seats 71 may be configured to form a seat (support) on the circuit board 64 can be mounted. The storage seat 71 may have an elongated plate shape extending in a front-rear direction. The storage bridges 73 may be provided so as to be upwardly from peripheral edges of the bearing seat 71 projecting on the left and the right side. The storage bridges 73 can have a front bridge part 731 and a rear bridge part 732 included separately at the storage seat 71 can be provided. Furthermore, the connecting parts 75 at upper parts of the front bridge part 731 and the rear bridge part 732 be provided. The front bridge part 731 and the rear bridge part 732 can through the storage seat 71 be stored, which is located on a lower side and can the storage parts 75 store, which are located on an upper side. The front bridge part 731 and the rear bridge part 732 can have the same shape.

Front connecting parts 751 can at an upper part of the front bridge part 731 be provided. Furthermore, rear connecting parts 752 at an upper part of the rear bridge part 732 be provided. The front connecting parts 751 and the rear connectors 752 may be formed to have the same shape. In other words, anyone can choose from the front connector parts 751 and the rear connection parts 752 be configured to form a pair in a symmetrical structure. Because of this construction, each one of the front connecting parts 751 and the rear connection parts 752 in contact with the male connection 34 by grasping or clamping the male connection 34 come. The connecting parts 75 (the front connecting parts 751 and the rear connectors 752 ) may be configured to project forwardly from the bearing bridge as an elastically deformable leaf spring 73 can extend. In particular, the connecting parts 75 (the front connecting parts 751 and the rear connectors 752 ) are adapted to incline inwardly toward each other from the left and right sides while the terminal parts extend forward. In other words, the connection parts 75 be designed so that the distance between them is reduced, while the connecting parts 75 extend forward until both terminals come into contact with each other in the vicinity of their front ends.

The connecting parts 75 may be formed in the leaf spring shape protruding toward the front side and a spring characteristic for gripping the male terminal 34 having. In other words, the left and the right connection parts 75 , which form a pair, an adequate elasticity for grasping or clamping the male terminal 34 exhibit. That way, the female connectors can 70 be configured to have a clamp type that allows the insertion of the male terminals 34 in the female connections 70 allows in the sliding direction and in elastic contact with the male terminals 34 come. In addition, as in 7 As shown, anyone can choose from the front connector parts 751 and the rear connection parts 752 be divided into an upper part and a lower part, so that they are in contact with the male terminals 34 at contact points 77 come. In addition, as in 7 As shown, anyone can choose from the front connector parts 751 and the rear connection parts 752 with a slot 76 be provided, which extends in the front-rear direction for dividing into the upper and the lower part. That way, the male connectors can 34 in contact with the female terminals 70 at a total of four contact points 77 come (ie power can be over the four contact points 77 be supplied).

The ground connections 65 and the discharge ports 66 can be configured to use the female connectors 70 are, and the charging port 67 may be configured to be a female port 80a is, and the communication port 68 may be configured to be a female port 80b is. The charging port 67 that is configured to be the female connector 80a is, can with a male connection 49B (please refer 24 ) of the associated charger 90 electrically connected, which will be described later. In addition, the communication port 68 that is configured to the female connection 80b to be with a male connection 49 of the battery attachment part 20 to be electrically connected. The charging port 67 and the communication port 68 that are configured to be the female connector 80a respectively. 80b may be the same shape as opposed to each other. As in 9 shown, the female connection can 80a and 80b also storage seats 81a and 81b , Storage bridges 82a and 82b and connecting parts 83a and 83 contain. That means that the female connectors 80a and 80b are formed in a type of female terminal that includes contact points with respect to the male terminal that is gripped or clamped therebetween.

The following are the male connectors 34 attached to the battery attachment part 20 are provided described. The male connections 34 can electrically with the female connections 70 be connected by putting in the female connectors described above 70 be introduced. As in 8th pictured, the male connectors can 34 configured to be part of a male connector component 31 are. 8th shows a perspective view of the male connection component 31 and the battery pack 50 , As in 8th shown, the male connection component 31 be a component that is part of the battery attachment part 20 by attaching to the tool main body 11 is attached. The male connection component 31 can be a base 32 and the male connections 34 contain. The base 32 may be a substantially flat plate-shaped member formed of synthetic resin. The base 32 may be provided with a corresponding structure so that it is part of the battery attachment part 20 becomes. The base 32 can with two male connections 34 be provided on a lower surface thereof, which extend in the front-rear direction, which corresponds to the sliding direction.

A detailed description regarding insertion of male connectors 34 in the female connections 70 is referring to 9 to 11 given. 9 FIG. 10 is a plan view showing an initial state of sliding insertion of the male terminals. FIG 34 represents, 10 FIG. 12 is a plan view showing a middle state of sliding insertion of the male terminals. FIG 34 represents, and 11 FIG. 11 is a plan view showing a completed state of sliding insertion of the male terminals. FIG 34 represents. In 9 to 11 are other components than the male connectors 34 , male connection 49 , the female connections 70 , the female connections 80a and 80b and the circuit board 64 not shown to the introduction of male connectors 34 in the female connections 70 easier to understand. In 9 to 11 can the male connection 34 Located on the right side, the male ground connection 341 comply with the ground connections 65 is connected. In addition, the male connection 34 located on the left side, the discharge port 342 match that with the discharge connections 66 is connected. The female-male connection structures 30 may be provided in pairs corresponding to the positive and negative terminals of a power source. As in 9 to 11 shown, the male ground connection 431 and the male discharge port 342 be configured to be symmetrical with respect to the center axis X, and the battery attachment part 20 may be at symmetry positions with respect to the center axis X.

12 to 14 show the male connections in detail. 12 is an enlarged plan view showing the male connection 34 that represents the male ground connection 341 is. 13 is an enlarged side view showing the male connection 34 that represents the male ground connection 341 is. 14 is an enlarged plan view showing a concavo-convex part 43 who in 12 is shown, on a further enlarged scale. The male connections 34 may be formed from an elongate plate having sufficient rigidity to fit into the female terminals 70 to be introduced, and, as in 12 shown, part of the male connections 34 can be bent as needed. As in 13 pictured, the male connectors can 34 functional in a mounting part 35 and a connector 36 be divided. In addition, as in 8th shown, the mounting hardware 35 be mounted on the base as described above. The mounting parts 35 can be electrically connected to the controller, which in the tool main body 11 is mounted, connected. In addition, the connecting parts 36 in the female connections 70 be introduced. The connecting parts 36 may be formed in an elongated plate shape extending in the front-rear direction, which corresponds to the sliding direction.

Lateral surfaces 37 on both sides of the connecting parts 36 may extend in the front-rear direction, which corresponds to the sliding direction. The side surfaces 37 on both sides can have a region with which the contact point 77 of the female connection 70 comes in sliding contact when the battery pack 50 is moved in a sliding manner. An area on the side surfaces 37 with which the contact point 77 of the female connection 70 being in sliding contact may be configured to have a sliding surface 38 to be. Normally, the sliding surfaces can 38 extending in the sliding direction. As in 13 shown, the sliding surfaces 38 two flat contact parts 40 contained. When the sliding movement is completed and the insertion of the male connectors 34 in the female connections 70 is complete, the flat connecting parts 40 in contact with the contact points 77 the female connections 70 come. The flat connecting parts 40 may be formed in a planar shape that extends flat in the sliding direction. The flat connecting parts 40 can be parts with which the contact points 77 the female connections 70 come into contact when the sliding movement is completed, creating mutual electrical connection between the female terminals 70 and the male connections 34 can be achieved. The completion of the sliding movement may be a state in which the male hook part 57 over the rear end edge 273 of the battery attachment part 20 and slides into the female hook part 27 fits.

The contact points described above 77 the female connections 70 can be attached to the front connecting parts 751 and the rear connection parts 752 be provided. According to these, the flat connecting parts 40 with which the contact points 77 the female connections 70 come in contact, be provided in two areas, which are offset in the front-back direction. In particular, as in 13 can be a smooth surface area 391 on the front side of the sliding surface 38 configured to be a front planar connector 401 to be, and a smooth surface area 392 at the rear side of the sliding surface 38 may be configured to have a rear planar connector 402 to be. The front level connection part 401 can be in contact with the contact points 77 the front connecting parts 751 come and the rear level connecting part 402 can be in contact with the contact points 77 the rear connection parts 752 come. The front level connection part 401 and the rear planar connecting part 402 may be a smooth plane that extends in the sliding direction. In addition, the contact points 77 the upper and lower parts of the front connecting parts 751 the female connections 70 the front flat connecting part 401 elastically clamp or engage and come into contact with them, so that they with the front flat connecting part 401 of male connection 34 be electrically connected. Similarly, the contact points 77 the lower and upper part of the rear connecting parts 752 the female connections 70 the rear level connecting part 402 clamp or embrace elastically and come in contact with this, so that they connect with the rear planar connecting part 402 be electrically connected.

The sliding surfaces 38 can have concave-convex parts 43 contained in two areas. In particular, front concave-convex parts 431 on the front side of the front planar connecting part 401 be provided, and rear concave-convex parts 432 can be on the front side of the rear flush connector 402 be provided. The front concavo-convex parts 431 and the rear concavo-convex parts 432 can be on the sliding surfaces 38 are offset in the front-rear direction and may also have the same configuration. Such as in 9 . 13 and 14 shown, the concave-convex parts 43 (the front concavo-convex parts 431 and the rear concavo-convex parts 432 ) a plurality of concave parts 41 which extend in a vertical direction and are arranged in the front-rear direction. The concave parts 41 may correspond to height difference parts of the present embodiment. The concave parts 41 may have a concave and / or recessed shape, by removing the connecting parts 36 in a thickness direction of the plate, ie, the male terminal 34 , are designed so that they have a height difference 44 in relation to the flat connecting parts 40 form.

As in 13 and 14 represented, the majority of the concave parts 41 , For example, four concave parts, parallel in the front-back direction on the sliding surface 38 be arranged. Due to this construction, the concave-convex parts 43 four concave parts 41 which extend in the vertical direction, and three protrusions extending in the vertical direction, and located between the four concave parts 41 are located. The concave parts 41 that the height difference 44 form in this way, can on the sliding surface 38 as linear ribs extending in the direction crossing with the sliding direction may be provided. As in 13 shown, the front planar connecting parts 401 and the rear planar connecting parts 402 be provided with a distance in the sliding direction. In other words, the front concavo-convex part 431 and the rear concavo-convex part 432 be provided with a distance in the sliding direction. In this example, two concavo-convex parts are arranged in the sliding direction.

The front concavo-convex part 431 and the rear concavo-convex part 432 can be connected to both the male ground connection 431 as well as the male discharge port 423 be provided at the same positions in the sliding direction. Due to this construction, when the sliding contact of the male ground terminal 431 and the male discharge connection 432 in terms of contact points 77 the female connections 70 (of ground connection 65 and the discharge connection 66 ), equivalent charges are formed simultaneously on both the left and right connection structures 30 be created. In other words, sliding contacts of the male ground terminal 341 and the male discharge connection 342 in relation to the front planar connecting parts 401 and the rear planar connecting parts 402 can simultaneously during the sliding movement of the battery 50 getting produced.

Like in 11 represented, the male connection 49 Being trained as a male connection type, into the female outlet 80b be introduced. The male connection 49 may correspond to a signal terminal of the present embodiment. The male connection 49 can be a mounting part 491 and a connector 492 in the same way as the male connectors 34 contain. In addition, the male connection 49 be configured to not with the female connector 80a the charging port 67 to be connected and only with the female connection 80b of the binding connection 68 to be connected. In particular, the male connection 49 with a cutout part 493 be provided, which is made by partially cutting out the plate. The cutout part 493 may be configured to that when inserting the male connector 49 in the female connection 80 is completed, the male connection 49 not in contact with the female connector 80a due to the cutout part 493 comes. The length of the male connection 49 in the front-back direction may be configured to be shorter than the connector parts 36 the male connections 34 is. In addition, the male connection 49 not with the concavo-convex parts 43 be provided.

In the female-male connection structure 30 between the battery pack 50 and the tool main body 11 As configured as described above, the following advantageous effects can be obtained. In the female-male connection structure described above 30 between the battery pack 50 and the tool main body 11 is provided, the height difference can be 44 in the thickness direction of the plate, ie the male terminal 34 , due to the concave parts 41 on the sliding surface 38 the connection parts 36 of male connection 34 be educated. In addition, the concave-convex parts can 43 be formed at a plurality of positions. The sliding surfaces 38 may be the area with which the contact points 77 the female connections 70 come into contact during the sliding movement. Due to this construction, oxidation films attached to the surfaces of the connecting parts 75 (in particular the contact points 77 ) of female connections 70 are formed by the convex-concave parts 43 be removed and / or scraped off during the sliding movement. Accordingly, in the female-male connection structure described above 30 the oxidation films attached to the surfaces of the connecting parts 75 are designed to be removed without incurring any effort for a user to handle (maintain) the electrical tool, so that an electrical connection between the female terminals 70 and the connection parts 36 the male connections 34 desirable and / or satisfiable over a longer period of time can be maintained.

In addition, according to the female-male connection structure described above 30 between the battery pack 50 and the tool main body 11 is provided because the female-male connection structure 30 between the battery pack 50 and the tool main body 11 is provided, the oxidation films attached to the surfaces of the connecting parts 75 are designed to be removed without any effort for the user to service the impact wrench 10 increase, so that an electrical connection between the female terminals 70 and the connection parts 36 the male connections 34 desirable and / or satisfiable over a longer period of time can be maintained. Furthermore, according to the female-male connection structure described above 30 between the battery pack 50 and the tool main body 11 is provided, when the sliding movement is completed, the flat connecting parts 40 in contact with the female terminals 70 come, and an electrical contact can be made, which means that the height difference 44 not provided on the area where the female terminals 70 and the connecting parts 36 the male connections 34 get in touch with each other. Accordingly, the electrical contact between the female terminals and the terminal parts 36 the male connections 34 desirable and / or satisfactorily achieved.

According to the female-male connection structure described above 30 between the battery pack 50 and the tool main body 11 is provided, the concave parts 41 that in relation to the flat connecting parts 40 in the thickness of the plate, ie the male terminal 34 , except are the height difference 44 form. Due to this construction, the oxidation films attached to the surfaces of the connecting parts 36 are formed, due to the height difference 44 be removed and / or scraped off during the sliding movement. Moreover, according to the female-male connection structure described above 30 between the battery pack 50 and the tool main body 11 is provided, the height difference 44 passing through the concave parts 41 is formed to include linear ribs extending in a vertical direction crossing with the sliding direction. Due to this construction, the oxidation films on the surface of the connecting parts 36 are formed by the sliding movement due to the linear ribs which extend in the crossing direction, removed and / or scraped off.

According to the female-male connection structure described above 30 between the battery pack 50 and the tool main body 11 is provided, the contact points 77 the female connections 70 both the front connectors 751 as well as the rear connectors 752 included with a clearance in the sliding direction. In addition, the flat connecting parts 40 the front flat connecting part 401 in the front smooth surface area 391 on the sliding surface 38 and the rear plane connecting part 402 in the rear smooth surface area 392 on the sliding surface 38 contain. In this way, the flat connecting parts 40 the front flat connecting part 401 and the rear plane connecting part 402 , which are provided at a distance in the sliding direction, corresponding to the two female terminals 70 contain. Accordingly, the electrical contact points of the female terminals 70 and the electrical contact points of the connecting parts 36 the male connections 34 be achieved reliably and thus can be a mutual electrical connection between the female terminals 70 and the male connections 34 be achieved reliably and / or desirable. The flat connecting parts 40 that the contact points 77 correspond to the female terminals may be provided so that there are two areas, which are the concave parts described above 41 contain, or that the concave parts 41 along the entire sliding surface 38 are provided.

In addition, according to the female-male connection structure 30 between the battery pack 50 and the tool main body 11 as described above, the female-male connection structure 30 be provided in pairs according to the positive and negative terminals of the power source. Sliding contact between the concave parts 41 and the contact points 77 Paired female connections 70 can simultaneously during the sliding movement of the battery pack 50 be achieved. Due to this construction, ie the arrangement as a pair, the sliding resistance of the battery pack can 50 when talking about the positions of the height difference 44 slides in a balanced manner during the sliding movement of the battery pack 50 be recorded. Accordingly, the sliding resistance generated when the battery pack 50 in terms of the tool main body 11 Slidable sliding is achieved in a balanced manner by the arrangement as a pair, and thus the Gleitpositur the battery pack 50 be maintained desirable, and the operability may be improved during the sliding movement. In addition, according to the female-male connection structure described above 30 between the battery pack 50 and the tool main body 11 is provided, oxidation films at the female ground terminal 65 and the female discharge port 66 desirable to be removed while the male connection 49 for a signal connection does not contain the concavo-convex parts. Due to this construction, unnecessary concavo-convex parts, which may cause attachment and / or removal resistance, at the male terminal 49 can be omitted and thus the battery pack 50 in a simple manner and / or desirable to or from the tool main body 11 attached or removed.

Second embodiment

Hereinafter, another embodiment will be described in which the concavo-convex part of the above-described concavo-convex parts 43 the first embodiment differs. In the embodiments described below, only one configuration of the concavo-convex parts may be used 43 on the sliding surface 38 the connection parts 36 are provided, different from that of the first embodiment. Accordingly, in the embodiments described below, descriptions regarding parts having the same configurations as in the first embodiment will be omitted by using the same reference numerals as those in the first embodiment. Moreover, in the embodiments described below, parts which are formed in a different manner but function in the same manner as in the first embodiment described above will be described by appending letter symbols to the reference numerals of the first embodiment.

15 is an enlarged plan view showing a male connection 34A represents according to a second embodiment. 16 is an enlarged plan view showing the male connection 34A represents according to the second embodiment. 15 represents the male connection 34A in the same way as in 12 seen, and 16 represents the male connection 34A in the same way as in 13 As far as the male connection is concerned 34A According to the second embodiment, the sliding surface 38 concave-convex parts 43A in two areas in in the same manner as in the first embodiment described above. In the concave-convex part 43A In the second embodiment, a front concavo-convex 431A on the front side of the front planar connecting part 401 be provided, and a rear concave-convex part 432A Can be on the front side of the rear level connector 402 be provided in the same manner as in the first embodiment.

Regarding a configuration that is on the sliding surface 38 can be arranged, the front concave-convex part 431A the same configuration as the rear concavo-convex part 432A exhibit. As in 15 and 16 shown, the concave-convex part 43A ie the front concavo-convex part 431A and the rear concavo-convex part 432A , a plurality of concave parts 41A which extend in the vertical direction and are arranged in the front-rear direction. In addition, the concave parts 41A extending so that they are inclined obliquely backwards while they extend down. The concave parts 41A may correspond to the height difference parts of the present embodiment of the teachings. In the same manner as in the first embodiment, the concave parts 41A have a concave and / or recessed shape, by removing the connecting parts 36 that the sliding surface 38 in a thickness direction of the plate, ie, the male terminal 34A , are designed to the height difference 44 train. In other words, the concave parts 41A the height difference 44 provide in a recessed form, in relation to the flat connecting parts 40 in the thickness direction of the plate, ie the male terminal 34A , is excluded.

The concave parts 41A The second embodiment may differ from the concave parts 41 of the first embodiment in that those of the second embodiment are inclined in the front-rear direction. In particular, the concave parts 41A of the second embodiment on the sliding surface 38 as linear ribs extending in the direction crossing the sliding direction (front-rear direction in the drawing), and also crossing in the direction crossing the direction perpendicular to the sliding direction (vertical direction in the drawing) be. In other configurations than this, the concave parts 41A be provided in the second embodiment as the linear ribs, which are linear in the same manner as the concave parts 41 of the first embodiment, and the region of the concave parts 41A in the second embodiment may also be on the sliding surface 38 in the same way as the area of the concave parts 41 be provided of the first embodiment. In addition, the front level connecting part 401 and the rear planar connecting part 402 the second embodiment as smooth surface areas 391 and 392 at the front and the rear of the sliding surface 38 be provided in the same manner as those in the first embodiment.

In the case where the front concavo-convex part 431A ( 43A ) and the rear concavo-convex part 432A ( 43A ) as provided in the second embodiment, the height difference parts may also cross the direction perpendicular to the sliding direction (the vertical direction in the drawing). Accordingly, removed pieces and / or powders of the oxidation films deposited on the recessed portions of the concavo-convex portion 43A remain moving along the direction crossing the sliding direction at the sliding movement of the height difference parts extending in the crossing direction. Due to this configuration, the removed pieces and / or the removed powder of the oxidation films can be discharged from the male and female terminals.

Third embodiment

The height difference parts of the present teachings are not limited to the examples of the first and second embodiments described above, and any configurations may be applied as long as the height difference parts are provided in the thickness direction of the plate, ie, the male or female terminals. For example, the height difference parts may be provided by providing projecting parts in the thickness direction of the board, ie, the male terminal 34B , in relation to the flat connecting parts 40 to be produced. 17 is an enlarged plan view showing a male connection 34B according to a third embodiment. 18 is an enlarged side view showing a male connection 34B according to the third embodiment shows. 17 represents the male connection 34B in the same way as in 12 seen, dar and 18 represents the male connection 34B in the same way as in 13 seen dar. 19 is an enlarged plan view showing a concavo-convex part 43B in 17 represented to an enlarged extent.

According to the male connection 34B According to the third embodiment, the sliding surface 38 concave-convex parts 43B in two areas in the same manner as in the first embodiment. In the concave-convex part 43B In the third embodiment, a front concavo-convex part 431B on the front side of the front flat connecting part 401 be provided, and a rear concave-convex part 432B Can be on the front side of the rear level connector 402 in the same manner as in the first and second embodiments described above. The front concavo-convex part 431B and the rear concavo-convex part 432B can be offset on the sliding surface 38 can be in the front-back direction and also the front concave-convex part 431 the same Configuration like the rear concavo-convex part 432B exhibit. As in 18 and in 19 shown, the concave-convex parts 43B (the front concavo-convex part 431B and the rear concavo-convex part 432B ) a plurality of protrusions 42B which extend in the vertical direction and are arranged in the front-rear direction. The projections 42B may correspond to the height difference parts of the present embodiment. In other words, the protrusions 42B have a protruding shape, that of the connecting parts 36 in the thickness direction of the plate, ie the male terminal 34B , projecting, and a height difference 44B can in relation to the flat connecting parts 40 be educated.

As in 18 and 19 can represent a plurality of the projections 42B , z. B. four projections 42B parallel in the front-back direction on the sliding surface 38 be arranged. In this case, the concave-convex parts 43B four projections 42B which extend in the vertical direction and three concave parts 41B included, extending between the four protrusions 42B are located and extend in the vertical direction. The projections 42B through which the height difference 44B can be made in this way, can on the sliding surface 38 may be formed as linear ribs extending in the direction crossing the sliding direction (front-rear direction in the drawing). Also in the case in which the height difference 44B As manufactured in the third embodiment, oxidation films may be formed on the surfaces of the terminal parts 36 are formed in the same manner as in the first and second embodiments by the height difference 44B having the protruding shape to be removed. Accordingly, oxidation films on the surfaces of the connecting parts 36 are designed to be removed without increasing the user's effort to maintain the tool, so that an electrical connection between the female terminals 70 and the connection parts 36 the male connections 34 desirable and / or satisfiable over a long period of time.

Fourth embodiment

The height difference parts may have a configuration in which a plurality of through holes passing through the sliding surface 38 the male connections 34 in the thickness direction of the plate, ie the male terminal 34C penetrate. 20 is an enlarged plan view showing a male connection 34C according to a fourth embodiment represents. 21 is an enlarged side view showing the male connection 34C according to the fourth embodiment. 22 FIG. 15 is an enlarged cross-sectional view showing a cross-sectional area along the line XXII-XXII in FIG 21 represented to an enlarged extent. For the concave-convex parts 43C According to the fourth embodiment, a front concavo-convex part 431C on the front side of the front planar connecting part 401 be provided and a rear concave-convex part 432C Can be on the front side of the rear level connector 402 be provided in the same manner as in the embodiments described above. As in 21 and 22 shown, the concave-convex part 43C For example, in the fourth embodiment, two elongated holes 41C included in the thickness direction of the plate, ie the male terminal 34C pierced (penetrate). The two elongated holes 41C may be arranged in parallel in the front-rear direction. The elongated holes 41C may correspond to the height difference parts of the present embodiment. The elongated holes 41C may have an elongated hole shape that extends vertically. In other words, the elongated holes 41C have an elongated hole shape through the connecting parts 36 in the thickness direction of the plate, ie the male terminal 34C , penetrate, leaving a height difference 44C at the level connecting parts 40 can be trained.

As in 21 and 22 shown, a plurality of elongated holes 41C , z. B. two elongated holes 41C , in front-rear direction on the sliding surface 38 be arranged. The elongated holes 41C that the height difference 44C form in this way, can be on the sliding surface 38 are linear ribs extending in the direction crossing the sliding direction (front-rear direction in the drawing). Also in the case in which the height difference 44C As formed in the fourth embodiment, the oxidation films formed on the surfaces of the terminal parts 36 are formed in the same manner as in the embodiments described above by the height difference 44C having the elongated hole shape, removed and / or scraped off. Thus, the oxidation films deposited on the surfaces of the connecting parts 36 are formed, removed and / or scraped, without increasing the effort for the user to service the tool, so that an electrical connection between the female terminals 70 and the connection parts 36 the male connections 34C desirable and / or satisfiable over a long period of time.

In addition, it may be in addition to the elongated holes described above 41C be possible that the height difference parts are simply pressed and / or excluded, without in the Thickness direction of the plate, ie the male terminal 34C to penetrate (push through). 23 FIG. 10 is an enlarged cross-sectional view showing a modified configuration of FIG 22 shows. As in 23 shown, can be concave-convex parts 43D ( 432D ) from the concavo-convex parts 43D holding the oblong holes 41C exhibit, distinguish, by concave-convex parts 43D not in the thickness direction of the plate, ie the male terminal 34C penetrate. On the other hand, the concave-convex parts 43D ( 432D ) similar to the concavo-convex part 43C Be by the parts 43D significant in the vertical direction, as in 23 shown are pressed in. As in 23 shown, the concave-convex parts 43D the fourth embodiment, two elongated indented parts 41D which are concave in the thickness direction of the plate and arranged in parallel in the sliding direction. The elongated dented parts 41D may correspond to the height difference parts of the present embodiment. As in 23 shown, the elongated indented parts 41D have a depressed and / or recessed shape extending significantly in the vertical direction. In other words, the elongated indented parts 41D have the elongated indented shape, which in the thickness direction of the connecting parts 36 extend, leaving a height difference 44D in relation to the flat connecting parts 40 can be trained. Even with the above-described configuration of the height difference parts, the oxidation films formed on the surfaces of the terminal parts can be given the height difference by the concavo-convex shape 44D removed and / or scraped off.

Although not shown in the figures, the height difference parts may be formed by sluggish embossing processing on the sliding surfaces 38 the male connections 34 getting produced. In addition, the height difference portion may have a plurality of recesses (depressions) formed on the sliding surface 38 the male connections 34 are formed included. Also, in the case where the height difference parts are configured as described above, oxidation films formed on the surfaces of the terminal parts can be removed and / or scraped off by these concavo-convex parts.

In addition, the above-described female-male connection structure 30 with an associated charger 90 or a battery adapter 95 as described below. 24 is a perspective view of an associated charger 90 , The illustrated associated charger 90 may correspond to an electrical device of the present embodiment. The associated charger 90 can charge the battery pack 50 used as a power source for the electric power tool. The female-male connection structure described above 30 can between the battery pack 50 and the associated charger 90 be provided. The specific charger 90 can also with a battery attachment part 91 be provided, which is essentially the battery attachment part 20 , which is provided on the tool main body described above, is the same. In the battery attachment part 91 of the specific charger 90 can a female splint 23B and a female hook part 27B representing a female rail structure 21B be provided. The battery attachment part 91 can with a connection part 36B of male connection 34B and the male connection 49B be provided in the same manner as in the embodiments described above. Reference numerals provided with a letter B at the reference numerals of the components described in the first embodiment are shown in the drawings. In the case of the associated charger configured as described above 90 For example, beneficial effects of the female-male connection structure can also occur between the battery pack 50 and the associated charger 90 be achieved.

25 is a perspective view of the battery adapter 95 , The illustrated battery adapter 95 may correspond to an electrical device of the present embodiment. Two battery packs 50 can be connected to the battery adapter 95 be attached as a power source of the electric power tool. The battery adapter 95 can between the battery pack 50 and the tool main body 11 be inserted (interposed). Due to this construction, the female-male connection structure 30 between the battery pack 50 and the battery adapter 95 be provided and also between the battery adapter 95 and the tool main body 11 , In particular, there are two battery attachment parts 20C parallel to a lower surface of the battery adapter 95 , as in 25 shown, provided. Accordingly, the battery adapter 95 be configured to use two battery packs 50 take.

In addition, as in 25 shown, the battery adapter 95 also with a structure on an upper surface side of the battery adapter 95 for attaching the battery adapter 95 to the battery attachment part 20 of the tool main body 11 be provided. In particular, the battery adapter 95 with a to the (mounting) structure of the battery pack 50 be provided similar structure. Reference numerals provided with a letter C on the reference numerals of the components described in the first embodiment are shown in the drawings. In the case of the battery adapter 95 who like above can be configured, advantageous aspects of the female-male connection structure 30 as well between the battery pack 50 and the battery adapter 95 be achieved.

The female and male connection structure of these teachings is not limited to the above-described embodiments and can be applied to other embodiments as well. The female-male connection structure 30 The above-described first embodiment and second embodiment may be configured to be between the battery pack 50 and the tool main body 11 to be provided. However, as the female-male connection structure, any configurations may be applicable as long as the female-male connection structure is applied in a technical field with respect to the electric power tool and the electric work machine in which the electric power tool battery pack is used as the power source. Moreover, any configurations may be applicable as long as the mutual connection structure can be obtained by the above-described male and female connection, and can be achieved by applying the female-male connection structure 30 be provided on the connection structure of the products as needed. Examples of the electric power tools of the teachings may include a screwdriver, a hammer drill, a jigsaw, a hand saw, a reciprocating saw, a blower, a sander, a sucker, etc., in addition to the impact wrench described above. Examples of the electrical machines of the teachings may include a lawnmower, a chainsaw, a trimmer, a hedge trimmer, a grass trimmer, etc.

It is explicitly pointed out that all features disclosed in the description and / or the claims are considered separate and independent of each other for the purpose of original disclosure as well as for the purpose of limiting the claimed invention independently of the feature combinations in the embodiments and / or the claims should. It is explicitly stated that all range indications or indications of groups of units disclose every possible intermediate value or subgroup of units for the purpose of the original disclosure as well as for the purpose of restricting the claimed invention, in particular also as the limit of a range indication.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• JP 2013-42672 [0003]
• JP 2013-230553 [0003]

Claims (17)

Electric device ( 10 ; 90 ; 95 ), which has a male connection ( 34 ; 34A ; 34B ; 34C ) and configured to allow a battery pack ( 50 ), which has a female connection ( 70 ) can be attached thereto, in which the male connection ( 34 ; 34A ; 34B ; 34C ) is electrically connected to the female connector ( 70 ) by sliding the battery pack ( 50 ) relative to the electrical device ( 10 ; 90 ; 95 ), so that the male connection ( 34 ; 34A ; 34B ; 34C ) into the female connection ( 70 ) is introduced in a sliding direction so that it is in elastic contact with the female terminal (FIG. 70 ), the male connection ( 34 ; 34A ; 34B ; 34C ) is configured to have a plate shape and the male terminal ( 34 ; 34A ; 34B ; 34C ) extends in the sliding direction and has a lateral surface ( 37 ) with which the female connection ( 70 ) comes in sliding contact, a height difference part ( 41 ; 41A ; 42B ; 41C ; 41D ) in a thickness direction of the male terminal ( 34 ; 34A ; 34B ; 34C ) on the lateral surface ( 37 ) of male connection ( 34 ; 34A ; 34B ; 34C ) is provided, and the height difference part ( 41 ; 41A ; 42B ; 41C ; 41D ) is configured to define an area ( 38 ) in which the female connection ( 70 ) in sliding contact with the male connector ( 34 ; 34A ; 34B ; 34C ) comes. Electric device ( 10 ; 90 ; 95 ) according to claim 1, wherein the height difference part ( 41 ; 41A ; 42B ; 41C ; 41D ) on both lateral surfaces ( 37 ) of male connection ( 34 ; 34A ; 34B ; 34C ) is provided. Electric device ( 10 ; 90 ; 95 ) according to claim 1 or 2, wherein the electrical device ( 10 ; 90 ; 95 ) a signal connection ( 49 ) configured to receive a signal from and to the battery pack ( 50 ) and transmit, in which the signal connection ( 49 ) is a male terminal, and the height difference part ( 41 ; 41A ; 42B ; 41C ; 41D ) at least on one of the male connectors ( 34 ; 34A ; 34B ; 34C ) with the exception of the signal connection ( 49 ) is trained. Electric device ( 10 ; 90 ; 95 ) according to one of claims 1 to 3, in which the lateral surface ( 37 ) of male connection ( 34 ; 34A ; 34B ; 34C ) a flat connecting part ( 40 ) with which the female connection ( 70 ) comes into electrical contact when a sliding movement of the battery pack ( 50 ) with respect to the electrical device is completed. Electric device ( 10 ; 90 ; 95 ) according to claim 4, wherein the height difference part ( 41 ; 41A ; 42B ; 41C ; 41D ) is configured so that the lateral surface ( 37 ) of male connection ( 34 ; 34A ; 34B ; 34C ) of the planar connecting part ( 40 ) in a thickness direction of the male terminal ( 34 ; 34A ; 34B ; 34C ) is excluded. Electric device ( 10 ; 90 ; 95 ) according to claim 4 or 5, wherein the height difference part ( 41C ) is configured so that a through-hole through the planar connecting part ( 40 ) penetrates. Electric device ( 10 ; 90 ; 95 ) according to claim 4, wherein the height difference part ( 42B ) is configured so that the lateral surface ( 37 ) of male connection ( 34B ) of the planar connecting part ( 40 ) in a thickness direction of the male terminal ( 34B ) protrudes. Electric device ( 10 ; 90 ; 95 ) according to one of claims 4 to 7, in which it is configured such that a plurality of planar connecting parts ( 40 ) of male connection ( 34 ; 34A ; 34B ; 34C ) are spaced in the direction of sliding so as to contact multiple points of contact ( 77 ) female connection ( 70 ) spaced apart in the sliding direction. Electric device ( 10 ; 90 ; 95 ) according to one of claims 1 to 8, in which the height difference part ( 41 ; 41A ; 42B ; 41C ; 41D ) has a linear shape extending in a direction crossing the sliding direction. Electric device ( 10 ; 90 ; 95 ) according to claim 9, wherein the height difference part ( 41B ) also crosses a direction perpendicular to the sliding direction. Electric device ( 10 ; 90 ; 95 ) according to one of Claims 1 to 10, in which a first male connection ( 34 ; 34A ; 34B ; 34C ) and a second male connection ( 34 ; 34A ; 34B ; 34C ), and it is configured such that a height difference part ( 41 ; 41A ; 42B ; 41C ; 41D ) of the first male terminal ( 34 ; 34A ; 34B ; 34C ) in sliding contact with a contact point ( 77 ) of a first female connection ( 70 ) is brought at the same time when a height difference part ( 41 ; 41A ; 42B ; 41C ; 41D ) of the second male terminal ( 34 ; 34A ; 34B ; 34C ) in sliding contact with a contact point ( 77 ) of a second female connector ( 70 ) is brought. Electric device ( 10 ; 90 ; 95 ) according to claim 11, wherein the first male connection ( 34 ; 34A ; 34B ; 34C ) is configured to correspond to a positive terminal of a power source, and the second male terminal ( 34 ; 34A ; 34B ; 34C ) is configured to correspond to a negative terminal of the power source. Electric device ( 10 ) according to one of claims 1 to 12, in which the electrical device is an electric power tool ( 10 ). Electrical device according to one of claims 1 to 12, wherein the electrical device is an electrical processing machine. Electric device ( 90 ) according to one of claims 1 to 12, in which the electrical device is a charger ( 90 ). Electric device ( 95 ) according to one of claims 1 to 12, in which the electrical device is an adapter ( 95 ) between the battery pack ( 50 ) and another electrical device ( 10 ) is interposed. Electric device ( 10 ; 90 ; 95 ), which has a male connection ( 34 ; 34A ; 34B ; 34C ) and is configured with a battery pack ( 50 ), which has a female connection ( 70 ) by sliding the battery pack ( 50 ) relative to the electrical device ( 10 ; 90 ; 95 ), while male connection ( 34 ; 34A ; 34B ; 34C ) into the female connection ( 70 ) is introduced in a sliding direction in which the male terminal ( 34 ; 34A ; 34B ; 34C ) has a plate shape which extends in the sliding direction and a lateral surface ( 37 ), with which a contact point ( 77 ) female connection ( 70 ) comes into sliding contact, the lateral surface ( 37 ) a flat connecting part ( 40 ), with which the contact point ( 77 ) female connection ( 70 ) comes into electrical contact when a sliding movement of the battery pack ( 50 ) with respect to the electrical appliance, and a concave-convex part ( 43 ), with which the contact point ( 77 ) female connection ( 70 ) in during the sliding movement of the battery pack ( 50 ) comes in sliding contact with respect to the electrical device, and the concavo-convex part ( 43 ) a recess and / or a projection in a thickness direction of the male terminal (FIG. 34 ; 34A ; 34B ; 34C ), whereby a height difference part ( 41 ; 41A ; 42B ; 41C ; 41D ) at the male terminal ( 34 ; 34A ; 34B ; 34C ), so that oxidation films deposited on the female terminal ( 70 ) have been formed during the sliding movement are removed.

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